Title: corona discharge
Long Title: IUPAC Gold Book - corona discharge
DOI: 10.1351/goldbook.12373
Status: current

Definition
Electric discharge generated in a gas, usually at atmospheric pressure, surrounding a conductor carrying a sufficiently high potential that the electric field around it ionizes the gas so as to form a plasma in the immediate vicinity of the conductor without causing complete electric breakdown or arcing.

Note
A corona discharge can also be sustained in a liquid.

Related Term
- glow discharge ionization: https://goldbook.iupac.org//terms/view/12422

Source
- PAC, 2013, 85, 1515. 'Definitions of terms relating to mass spectrometry (IUPAC Recommendations 2013)' on page 1533 (https://doi.org/10.1351/PAC-REC-06-04-06)

Other Outputs
- html: https://goldbook.iupac.org/terms/view/12373/html
- json: https://goldbook.iupac.org/terms/view/12373/json
- xml: https://goldbook.iupac.org/terms/view/12373/xml

Citation: Citation: 'corona discharge' in IUPAC Compendium of Chemical Terminology, 5th ed. International Union of Pure and Applied Chemistry; 2025. Online version 5.0.0, 2025. 10.1351/goldbook.12373
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Accessed: 2026-08-10T06:36:59+00:00